jackson



(No Model.) 2 Sheets--Sheet 1. E. A. JACKSON.

. GRATB FRONT. v No. 310,437. Patented Jan. 6, 1885.

W1 Tmmsm fad, W

I r A .dtturney N. FETKRS, Phuloillhngmpher. Washing 0000000 c.

(No Model.)

E.A.JACKSO N.

2 Sheets-Sheet 2'? GRATE'FRONT.

Patented Jan. 6, 1885.

uuunnciu cmcluutml" dttorney UNITE STATES PATENT OFFICE.

EDWIN A. JACKSON, on NEW YORK, n. Y.

GRATE-FRONT.

EEPECIPICATION forming part of Letters Patent No. 310,437, dated January6, 1885.

Application filed April 2, 1884.

To ctZZ whom it may concern.-

Be it known that I, EDWIN A. JACKSON, a citizen of the United States,residing at New York, in the county of New York and State of New York,haveinvented certain new and useful Improvements in Grate-Fronts; and Ido hereby declare the following to be a full, clear, and exactdescription of theinvention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to means for preventing polished, plated, orenameled grate frames or fronts from being discolored or tarnished bythe action of heat.

It is well known that grate fronts or frames which are polished orplated with nickel or other metal very soon become discolored and losetheir polish in the immediate vicinity of the grates, owing to becomingheated by the fire and by contact with the grates which they support,and in the case of enameled fronts the coating of enamel is brokenandpeels off from the same cause.

In overcoming this disadvantage my invention consists in a rearflue-plate of novel construction, and the combination thereof with theupright side portions of a gratefront, as

hereinafter described, for the purpose of formin g air-fines. wherebyare kept cool those portions of the grate-front which are otherwiseliable to be tarnished or blistered by heat.

In the accompanying drawings, Figure 1 is a front view of a grate-frameprovided with my improvement, the flue-plates being shown in dottedlines. Fig. 2 is a rear view of the frame. Fig. 3 is a perspective viewof one of the flue-plates detached. Fig. l is a rear perspective View ofa port-ion of one side of the grate-frame to which the flue-plate issecured.

In the present instance the uprights A A of the grate-frame haverearwardly-turned' flanges a at their edges, and the external surfacesare supposed to be highly polished and nickel-plated. On the rearsurface of each upright is secured a flue-plate, B, which is held inposition by a single screw; though a greater number of screws might beused if necessary, or any other suitable means offastenin g adopted.Each flue-plate has at one edge a trough like portion with walls 0 cjoined at approximately right'angles, so that when the plate is (Nomodel.)

placed against the rear surface of the upright A the outer flange and aportion of the front of the upright form the other inclosing-walls of avertical flue, which is closed at its upper end and open at its lowerend, a portion of the flange of the upright being cut away at the footof the flue, as shown at (Z, to form an air-inlet.

From the upper portion of the wall 0 of the flue projects a plate, B,having upwardly-inclined upper and lower edges, and'recessed entirelyacross its width to form a shallow oblique flue. which intersects thevertical fine just described. A portion of the inner flange of theupright is cut away, as shown at f, in order to leave the mouth of thisshallow flue open toward the grate.

From the inner edge of the plate B, near its upper edge projects a lug,g, for supporting the upper edge of the grate, which is to be engagedtherewith in the usual manner, an- 7 other lug, g, or hook being cast onthe rear surface of the upright for engaging properly with the fireplacelining or side wall. The upper lug, g, is shouldered, as shown at 7L, inorder to prevent the grate from coming in con tact with the inner flangeof the upright.

On referring to Figs. 1 and 2 it will be seen that between the uprightand the fluc-plates are air passages or lines, which are open at theirlower ends at the points (I d, and open at their upper ends directlyinto the opposite ends of the grate, and it will be obvious that when afire is built in the grate a draft will be created which will causecurrents of air to flow in the direction indicated by the arrows. Thecurrents of air first ascend through the vertical fines, and, turninglaterally, spread out into the shallow portions of the fines between theplates B and the uprights, so that broad currents of air continuallyflow in con tact with those portions of the uprights which are adjacentto the ends of the grate, and the polished fronts of which would beliable to discoloration by the heat were it not that these \Vhat I claimis 1. The combination, with the side uprights of the grate-frame, of theiiue-plates composed of the trough-like portions open at the bottom andthe recessed portions extending laterally therefrom to the ends of thegrate and open thereto, substantially as described.

2. The combination, with the side uprights having rearward]y-extendingflanges which are notched opposite the position of the grate, of theflue-plates, each composed of a vertical trough-like portion closed attop and open at bottom, and the wide recessed portion 13, extendinglaterally from said troughlike portion to the notch in the adj aeentflange of the upright, said flue-plates being attached to the uprightsrespectively, and forming in conneetion therewith the inclosing-walls ofair-fines which keep said uprights cool when fire is kindled in a gratesupported between them, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

EDXVIN A. J AOKSON Vitnesses:

WV. B. HALE, HARRY Y. DAVIS.

